sme-rko-finance-front-payments-currency-payment-actions-operations-repeat-modelsnpm
sme-rko-finance-front-payments-currency-payment-actions-operations-repeat-models is a confirmed malicious npm package (MAL-2026-13658) that executes malicious code on install (malicious version 35.8.1). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in sme-rko-finance-front-payments-currency-payment-actions-operations-repeat-models (npm)
What this malware does
On require() of the package, index.js loads _support.js and lib/telemetry.js, both of which reconstruct the identifier 'child_process' and destination hostnames from split string fragments (e.g. ["oob-worker.cf102","-baf.work","ers.d","ev"].join("")) to evade static analysis. The code selects an OS-specific path, downloads a binary from one of four Cloudflare Workers hosts (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev), writes it to /var/tmp or %TEMP% under a hidden/dotnet_diag-style name, chmod 0755 on POSIX, and spawns it detached via /bin/sh -c or cmd /c start with no hash or signature verification. When HTTPS mirrors fail, a DNS-TXT covert channel queries c.<domain> for a chunk count and iterates 0.<domain>..N.<domain> under sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru, concatenates the TXT chunks, base64-decodes them into a binary, writes it to disk and spawns it. lib/telemetry.js (the main entry) contains a parallel dropper path with the same fetch/base64-decode/chmod/spawn shape. Cover-story comments ("Initialize runtime analytics", "Detached process to avoid blocking npm install") and DISABLE_TELEMETRY/DO_NOT_TRACK env checks are wrapped around the dropper to masquerade as legitimate telemetry.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for sme-rko-finance-front-payments-currency-payment-actions-operations-repeat-models (version 35.8.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging sme-rko-finance-front-payments-currency-payment-actions-operations-repeat-models across your stack and pipelines.
If you installed it — respond
Remove sme-rko-finance-front-payments-currency-payment-actions-operations-repeat-models from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.
Did it already run?
If sme-rko-finance-front-payments-currency-payment-actions-operations-repeat-models was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks sme-rko-finance-front-payments-currency-payment-actions-operations-repeat-models before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks sme-rko-finance-front-payments-currency-payment-actions-operations-repeat-models-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.